Tailoring of Vaccine-Focused Messages: Moral Foundations
1 other identifier
interventional
850
1 country
1
Brief Summary
This study is the first phase of a trial examining decision making about vaccines. This phase tests the impact of targeted vaccine-focused health messages on vaccine beliefs held by parents of young children and pre-adolescents. The participant's vaccine beliefs will be assessed at baseline. Two weeks later, the participant's moral matrix will be assessed. A vaccine-related message that appeals to the individual's three most or least emphasized moral foundations will then be presented. Immediately afterwards, vaccine beliefs will be assessed to determine the impact of the message.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Aug 2016
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 28, 2016
CompletedFirst Posted
Study publicly available on registry
August 1, 2016
CompletedStudy Start
First participant enrolled
August 1, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 1, 2016
CompletedStudy Completion
Last participant's last visit for all outcomes
October 1, 2016
CompletedMarch 10, 2017
March 1, 2017
2 months
July 28, 2016
March 9, 2017
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Overall change in attitude towards vaccines
Number of caregivers experiencing a change in attitude towards vaccines.
Week 2
Intent to have their children vaccinated
Number of caregivers opting to have their children vaccinated.
Week 2
Study Arms (3)
Morally Congruent Message
EXPERIMENTALParticipants randomized to this arm will receive a vaccine-related message developed to appeal to their three most-emphasized moral foundations.
Morally Non-Congruent Message
EXPERIMENTALParticipants randomized to this arm will receive a vaccine-related message developed to appeal to their three least-emphasized moral foundations.
Control Message
SHAM COMPARATORParticipants randomized to the control arm will be provided with a short passage about the costs and benefits of bird feeding.
Interventions
The baseline survey contains questions regarding level of existing vaccine hesitancy (Parent Attitudes about Childhood Vaccines (PACV) short scale and HealthStyles questions), demographic information, and intent to vaccinate their children. All study surveys will be completed on an electronic device.
Participants will be contacted two weeks after completing the baseline survey to answer questions about their moral beliefs. The survey will include questions form the Moral Foundations Questionnaire as well as additional questions. An algorithm will calculate the participant's moral matrix based on answers to these questions.
Intervention messages consist of four short paragraphs. The first three focus on how getting vaccinated helps uphold specific moral foundations. The fourth summarizes the contents of the prior paragraphs. Participants randomized to the morally congruent arm will receive a vaccine-related message developed to appeal to their three most-emphasized moral foundations. The first paragraph focuses on the most emphasized foundation, the second on the third-most emphasized, and the third on the second-most emphasized.
Intervention messages consist of four short paragraphs. The first three focus on how getting vaccinated helps uphold specific moral foundations. Participants randomized to the morally non-congruent arm will receive a vaccine-related message developed to appeal to their three least-emphasized moral foundations. The first paragraph focuses on the least emphasized foundation, the second on the third-least emphasized, and the third on the second-least emphasized.
Participants randomized to the control arm will be provided with a short passage about the costs and benefits of bird feeding.
Immediately after reading the randomly assigned message participants will complete a follow-up survey assessing level of existing vaccine hesitancy (PACV short scale and HealthStyles questions) and intent to vaccinate their children.
Eligibility Criteria
You may qualify if:
- Have at least one child ≤ 12 years of age
- Reside in the United States
You may not qualify if:
- Have previously participated in this study
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Emory Universitylead
Study Sites (1)
Emory University School Of Public Health - Only Online Recruitment
Atlanta, Georgia, 30322, United States
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Saad B Omer, BBS, MPH, PhD
Emory University
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- OTHER
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
July 28, 2016
First Posted
August 1, 2016
Study Start
August 1, 2016
Primary Completion
October 1, 2016
Study Completion
October 1, 2016
Last Updated
March 10, 2017
Record last verified: 2017-03
Data Sharing
- IPD Sharing
- Will not share